CetaceaNow is a conservationist organization that monitors the health of whale and dolphin populations worldwide. As part of their work, they are modelling thelengths of blue whale calves that will be born over the next decade. For their model, CetaceaNow is using a normal distribution with a mean of 281 in and astandard deviation of 40 in.Use this table or the ALEKS calculator to find the percentage of blue whale calves with a length of between 247 in and 347 in according to the model. For yourintermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%).

Answered: Image /qna-images/answer/956037ec-4170-4398-8707-bdec2834bfdf.jpg

Answered: CetaceaNow is a conservationist…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Most graduate schools of business require applicants for admission to take the Graduate Management Admissions Council GMAT examination. Scores on the GMAT are roughly normally distributed with a mean of 527 and a standard deviation of 112. How high must an individual score on the GMAT in order to score in the lowest 11%?
CetaceaNow is a conservationist organization that monitors the health of whale and dolphin populations worldwide. As part of their work, they are modelling the lengths of killer whale calves that will be born over the next decade. For their model, CetaceaNow is using a normal distribution with a mean of 280 cm and a standard deviation of 20 cm. Use this table or the ALEKS calculator to find the percentage of killer whale calves with a length of between 269 cm and 299 cm according to the model. For your intermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%).
Most water treatment facilities monitor the quality of their drinking water on an hourly basis. One variable measured is pH, which measures the degree of alkalinity or acidity in the water. A pH below 7.0 is acidic, one above 7.0 is alkaline, and a pH of 7.0 is neutral. One water-treatment plant has a target pH of 8.5. (Most try to maintain a slightly alkaline level) The mean and standard deviation of 1 hour’s test results based on 49 water samples at this plant are: = 8.42; s = 0.16 Does this sample provide sufficient evidence that the mean pH level in the water differs from 8.5? do in excel if needed
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